Contour Flange

[JulieTang]

Can someone explain why Im unable to select the sketch when using contour flange? Attached is the file I am using. 

When I click "contour flange" it only allows me to select part of the sketch and not the entire thing and won't allow me to select all of it. Thanks in advance

[ldutkaTUZ58]

How about a JPEG so all can get in on the action??

[kacper.suchomski · Accepted solution]

Hi

Sketch lacks continuity. Curves must be tangent.

Ps. Each sketch should be fully dimensioned.

[SBix26 · Accepted solution]

Curves don't have to be tangent because the Contour Flange tool supplies the bend when transitioning around a sharp corner.  But in this case, there is a tiny, possible zero length line at the point where the contour flange stops.  Delete that little line (window select is the easiest), then edit the Contour Flange feature and re-select the profile:

By the way, even for quick example parts it is important to constrain your sketches.  It shows that you know what you're doing in Inventor, and also that you've eliminated poor/missing constraints as the source of your issue.

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Sam B

Inventor Pro 2025.1.2 | Windows 11 Home 23H2